Rotary spray-nozzle for road-treating machines.



S. E. FINLEY. ROTARY SPRAY NOZZLE FOR ROAD TREATING MACHINES.

APPLICATION FILED OCT. 5. I9I4.

Patented Nov. 23,

'ROTARY SPRAY-NOZZLE FOR ROAD-TREATING MACHINES.

Application filed ()ctober 5, 1 914. ,Serial No. 865,114.

To all whom it may concern:

Be it known that I, SAM E. FINLEY, a citizen of the United States,residing in the city of Atlanta, county of Fulton, and State ofGeorgia," have invented certain new and useful Improvements in RotarySpray-Nozzl'es for Road-Treating Machines; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention relates to spray nozzles, and particularly to thoseintended for use on machines for applying preservatives to road. ways.Such a machine is disclosed in my co-pending application, filed April 5,1913,

Serial No. 7 59,044, and involves the use of spray nozzles adapted todeliver rotary.

conical surface.

The object of the present invention is to provide such a spray nozzlehaving the improvements hereinafter set forth, and which is particularlyadapted for a machine of the type shown in the co-pending' applicationabove referred to. As will hereinafter be seen, however, the improvednozzle is not limited in its use to any particular type of machine, andmay be used in other relations than that shown, Without departing fromthe scope of the invention.

jets of the preservative to the road The invention is illustrated in theaccompanying drawing, in which Figure 1 represents, in side elevation,the rear portion of a road treating machine, such as that disclosed inthe co-pending application above referred to, wlth the improved spraynozzle applied thereto; Fig. 2 is arear elevation of the improvednozzle; Fig. 3 is a vertical section, taken on the line 3--3, of Fig. 2;and Fig. 4 is a transverse section taken on the line J -4 of Fig. '3.

Of the machine shown in Fig. 1, itis only necessary to note, for thepresent purpose, the pump A for delivering the preservative to thesurface of the roadway through suitable piping comprising a header Bdisposed transversely of the roadway and provided with a plurality ofdepending pipe sections C, to the lower extremities of which the spraynozzles are connected. By this means,

the'spray nozzles are disposed in a series'arranged transversely of theroad bed and are properly spaced, so that the entire surface of the roadbed will be treated. One of Specification of Letters Patent.

ner.

Patented Netti-23,1915.

. such spray nozzles, forming the subject of the present application, isrepresented at D, and in its preferred form, is constructed as follows:

A main body portion 1 is provided, preferably consisting of a metalcasting having an interiorly threaded inlet 2 adapted to be connected tothe lower extremity of one of the depending pipe sections C. A circularoutlet portion 3 is also formed on the main body portion 1 and isexteriorly threaded as shown at 4, to adjustably support a dependingbracket 5. In the present instance this bracket consists of a splitannular ring 6 having interior threads cooperating with the threads 4 ofthe outlet portion 3. A bolt and nut 7 serves as means for clamping thesplit ring'6 in its adjusted position with respect to the outlet portion3. The split ring 6 carries depending arms 8, preferably formed integralwith the ring 6, which arms carry a bearing portion 9 having a centrallongitudinal bore or opening adapted to re ceive the stem or bearing 13of the conical distributer 10. A set screw 11 and lock nut 12 arecarried by the bearing portion 9, so that the raising or lowering of theset screw 11 acts upon the bearing 13 of the conical distribute! 10 tochange the vertical adjustment of the distribute! in an obvious man- Ifdesired, an anti-friction ball 13' may be interposedbetween the setscrew 11 and the extremity of the bearing 13, as shown in Fig. .3. p

The conical distribnter 10 cooperates with an outlet opening, ,14 formedin an annular ring 15, screwed ifito the interior of the outlet portion3 of the nozzle.

The fluid in passing through the nozzle, before reachin the opening 14,acts upon the radially isposed blades of a rotary member 16. Theradially disposed blades are shown at 17, and may be sufficient innumber to cause thejmember 16 to properly rotate. The rotary member 16is located in a vertically disposed portion 18' of the main body 1, towhich vertically disposed portion, the fluid is admitted b -means of atangential passage 19, (Fig. 4;. The fluid, in passing from thetangential passage 19, acts upon the radially disposed blades 17 of therotary member 16, in such a manneras to rapidly rotate the same. Therotary member 16 is carried by a vertical pintle, the lower end of whichis threaded, as shown at 20, and screwed into the apex of the conicaldistributer 10. The upper extremity 21 of the pintle is journaled in abushing 22, preferably externally threaded and screwed into the upperpart of the main body portion 1. The bushing 22 is preferably carried asan integral part of adome-shaped member 23, which is made hollow andserves to maintain a uniform pressure on the fluid in much the samemanner as the dome on a pressure pump. This is permitted bythe factthata portion of the fluid is allowed to pass be tween the pintle 21 andthe bushing 22 into the opening of the dome-shaped member 23.

From the foregoing construction, it will be noted that the fluidadmitted at the inlet 2 passes through the tangential passage .19 andacts. upon the radially disposed blades 17 to rotate the rotary member16. The member 16 being connected to the conical distributer l0 causesthe latterto rotate and to distribute the fluid directed thereon by theopening 14. The fluid. is, therefore, delivered to the roadway in aconical jet, which has imparted thereto, a whirling motion, due

I to the rotation of the distributer 10. It is preferable, though. notnecessary, to provide the distributer 10 with corrugations 24: to aid intlieaotation of the distributer and also to comminuteand break up thevfluidinto small globules. The fluid, in expanding from a jet, equal insize to the diameter of theopening 14 to a jet equal in size to thediameter of-the spray, where it contacts with the road surface,causesthe lighter constituents of the preservative to volatilize,leavingonly the heavier constituents, which are the most desirable for roadtreating purposes. The breaking up of the spray into globules, by meansof the corrugations, aids in this volatilization of the lighterconstitutents in an obvious manner. As a plurality of nozzles of thekind described are provided, arranged ina series transversely of theroadway, it is obvious that, as the machine is moved over the roadway,all portions of its surface will be treated by the preservatiye fromevery angle. The improved nozzle is, therefore,

particularly Well adapted for machines for treating all kinds of pavedroadways and city streets, whether of concrete, macadam, bituminousconcrete, "or the like. It is adapted forsurface treatment of hardroadways,

1 as well as for coating broken stone with bitumen to form abituminousmacadam.

The several parts of the nozzle areflcapable'of adjustment to suitvarious conditions, the bracket 5, for instance, being adjustable on theoutlet portion 3 to bring the conical distributer 10 into properrelation with the discharge opening 14. The position of the conicaldistributer 10 may also be changed by means ofthe adjusting screw 11.The

quantity of'preservative, or other fluid, ap-

plied to the treated surface depends upon the.

size of the opening '14, and also the relative 'cumstances call for sucha change.

designed for delivering position of the conical distributer 10 withrespect to said opening, as obviously, if the conical distributer 10 isin close proximity to the opening 14, less fluid will be applied to thesurface than if the conical distributer 10 were 30 adjusted as to befarther from the opening 14. The ring 15 may be readily removed andreplaced by another rin having a different size opening therein w 1011 Vconical distributer 10 may also be replaced by a distributer of adifferent size or diflerent shape. The improved nozzle is, therefore,capable of meeting a large range of conditions.

As the rotary element 16 is'continually rotated by the fluid, there islittle danger of the nozzle becoming clogged. Furthermore, as a largeroutlet openin can be used than in previous devices of this kind,clogging is not as apt to occur as in former devices.

The nozzle above described is especially to the roadway. preservativesof low speci c gravity. In fact, it

has been demonstrated in practice that the.

nozzle will successfully apply asphalt oils and tar products, running ashigh as 95% of bitumen, in quantities of t of a gallon to one gallon tothe surface square yard. No matter how heavy the preservative is, therotary member 16 will aid in preventing clogging of the nozzle, therelatively large outlet opening will permit a free flow of the fluid,and the rotary conical distributer will break up the stream of fluiddirected thereon by the opening 14 and properly distribute it to theroad surface, the corrugations serving to break up the fluid intoglobules, as above described, and the expansion of the fluid serving tovolatilize the lighter constitutents, as hereinbefore stated.

lVhat I claim is-:

1. A spray nozzle for distributing fluids, comprising a body portionhaving an inlet and an outlet, a conical distributer adapted todistribute the fluid issuing from the outlet, and a rotaryelementdisposed in said body portion, said body portion having a passagetangentially arranged with respect to, the rotary element to permit thefluid [to actuate the same.

2. A spray nozzle for distributing fluids, comprising a body portionhaving an inlet and an outlet, a conical distributer adapted todistribute the fluid issuing from the outlet, and a rotary elementdisposed in said body portion and connected with said distributer, saidbodyv portion having a passage tangentially arranged with respect to therotary element to permit the fluid to actuate the same and the conicaldistributer.

3. A spray nozzle for distributing fluids, comprising a casing having aninlet and an outlet, a conical distributer adjacent said outlet andadapted to distribute the fluid issuing therefrom, said distributerprovided with corrugations, and a rotary element disposed in said casingand adapted to be actuated by the fluid passing through the nozzle, andconnections between said rotary element and said distributer whereby theformer rotates the latter.

4. A spray nozzle for distributing fluids, comprising a body portionhaving an inlet and an outlet, a conical distributer adapted todistribute the fluid issuing from the outlet, and a rotary elementdisposed in said body portion between said inlet and outlet and providedwith radially directed Wings, the body portion having a passage todirect the fluid tangentially against said wings to rotate said element.

5. A spray nozzle for distributing fluids, coin n'ising a casing havingan inlet and an outlet, a conical distributer adjacent said outlet andadapted to distribute the fluid issuing therefrom, and a rotary elementdisposed in said casing between said inlet and outlet adapted to berotated by'the fluid passing through the nozzle, and means to adjust theposition of the distributer with respect to the outlet.

6. A spray nozzle for distributing fluids, comprising a casing havinga-horizontally disposed portion-and a vertically disposed portion, thehorizontal portion having an inlet and the vertical portion having anoutlet, a rotary element disposed inside of the vertical portion of thecasing, the horizontal portion having a passage adapted to direct thefluid against the rotary element to rotate the same, a bracket carriedby the vertical portion, and a conical distributer carried by saidbracket to distribute the fluid issuing from said outlet. I

7. A spray nozzle for distributing fluids,

comprising a casing having a horizontally disposed portion and avertically disposed portion, the horizontal portion having an inlet andthevertical portion having an outlet, a rotary element disposed insideof the vertical portion of the casing, the horizontal portion having apassage adapted to direct the fluid against the rotary element to rotatethe same, a bracket adjustably carried by the vertical portion, and aconical distributer 'adjustably carried by said bracket to distributethe fluid issuing from said outlet. 4 y

-8. A spray nozzle for distributing fluids, comprising a casing having ahorizontally disposed portion and a vertically disposed portion, thehorizontal portion having an inlet and the vertical portion having anoutlet, a rotary element disposed inside of the vertical portion of thecasing, the horizon .tal portion having a passage adapted to direct thefluid against the rotary element to rotate the same, a bracketadjustably carried by the vertical portion, and a rotary conicaldistributer adjustably carried by said bracket and connected to saidrotary element todistribute the fluid issuing fro said outlet. Y

9. A spray nozzle for distributing fluids, comprising acasing having aninlet and an outlet,-a corrugated distributer outside of the casinganddisposed adjacent the out let, and means in the casing actuated by thefluid passing therethrough to rotate said distributer.

In testimony whereof I aflix my signature, in presence of two witnesses.

SAM EVERETT FINLEY. Witnesses:

R. N. Mosns, THOMAS I. MILLER.

Uopies of this patent may be obtained for five centseach, by addressingthe Commissioner of Patents, Washington. D. 0. A

